Sink



FIG. 1 is a perspective view taken from the top, front, and left side of a sink showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a left side view elevational thereof, the right side view being a mirror image;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a sectional view taken on line 6--6 of FIG. 2; and,

FIG. 7 is a sectional view taken on line 7--∂of FIG. 2.

The broken-line representation of holes in FIGS. 1 and 2 and the broken-line representation of a counter top in FIG. 1 are for purposes of illustration only and form no part of the claimed design. 

The ornamental design for a sink, as shown and described. 